Underwater vehicle



FIG. 1 is a perspective view of an underwater vehicle showing my new design;

FIG. 2 is a perspective view thereof; showing the side opposite that shown in FIG. 1;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a side elevational view thereof; the side opposite being a mirror image;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view thereof. 

The ornamental design for a underwater vehicle, as shown and described. 